Brocade Mobility RFS Controller System Reference Guide (Supporting software release 5.5.0.0 and later) User Manual

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Brocade Mobility RFS Controller System Reference Guide

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5

FIGURE 71

Profile Overrides - Network Bridge VLAN screen

6. Review the following VLAN configuration parameters to determine whether an override is

warranted:

7. Select Add to define a new Bridge VLAN configuration, Edit to modify or override an existing

Bridge VLAN configuration or Delete to remove a VLAN configuration.

VLAN

Lists the numerical identifier defined for the Bridge VLAN when it was initially created. The available
range is from 1 - 495. This value cannot be modified during the edit process.

Description

Lists a VLAN description assigned when the VLAN was created or modified. The description should be
unique to the VLAN’s specific configuration and help differentiate it from other VLANs with similar
configurations.

Edge VLAN Mode

Defines whether the VLAN is currently in edge VLAN mode. A green check mark defines the VLAN as
extended. An edge VLAN is the VLAN where hosts are connected. For example, if VLAN 10 is defined
with wireless clients, and VLAN 20 is where the default gateway resides, VLAN 10 should be marked
as an edge VLAN and VLAN 20 shouldn’t be marked as an edge VLAN. When defining a VLAN as edge
VLAN, the firewall enforces additional checks on hosts in that VLAN. For example, a host cannot move
from an edge VLAN to another VLAN and still keep firewall flows active.

Trust ARP Response

Trusted ARP packets are used to update the IP-MAC Table to prevent IP spoof and arp-cache poisoning
attacks. When ARP trust is enabled, a green check mark displays. When disabled, a red “X” displays.

Trust DHCP Responses

When enabled, DHCP packets from a DHCP server are trusted and permissible. DHCP packets update
the DHCP Snoop Table to prevent IP spoof attacks. When DHCP trust is enabled, a green check mark
displays. When disabled, a red “X” displays.

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